We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Papers
61,005 resultsShowing papers similar to Bước đầu xác định vi nhựa trong một số mẫu nước thải sinh hoạt thành phố Hà Nội
ClearEstimation of Laundry-derived Microfiber Discharges into Wastewater: A Case Study in Hanoi City
Researchers analyzed 30 household laundry wastewater samples from Hanoi, Vietnam, finding extremely high microplastic concentrations averaging 96,296 particles per cubic meter, with fibers making up 99.6% of all particles and 12 polymer types identified.
Sources of microplastic pollution in the Saigon-Dong Nai rivers, potential risks affecting human health and recommendations for mitigation solutions
Sampling of the Saigon-Dong Nai river system in Vietnam detected microplastic fragments, films, and fibres at concentrations of up to 715,000 particles per cubic metre, primarily sourced from urban runoff, wastewater, and industrial discharge. Because these rivers supply drinking water and support subsistence fishing for millions of people, the findings highlight a significant and largely unquantified human exposure pathway to microplastics in a rapidly urbanising region.
Assessment of microplastic abundance and characteristics in the coastal water of Hai Phong, Vietnam
Researchers assessed microplastic abundance and characteristics in coastal waters of Hai Phong, Vietnam, finding concentrations of 11.1 items per cubic meter in net samples and 1,515.4 items per cubic meter in bucket samples, with fibers accounting for more than 60% of the 2,659 particles identified.
Nghiên cứu mức độ ô nhiễm vi nhựa trong nước và trầm tích sông Sài Gòn–Đồng Nai
This Vietnamese-language study investigated microplastic pollution levels in water and sediments of the Saigon-Dong Nai River system. River systems like these are major transport pathways for microplastics from land-based sources into the ocean.
A preliminary assessment of microplastic occurrence and their potential risk as pollutant transport vectors: A case study in Phu Ly, Ha Nam, Vietnam
Researchers conducted a preliminary assessment of microplastic occurrence in Vietnam, identifying microplastics in environmental samples and raising concern about their role as vectors for co-transported pollutants in an undersampled region of Southeast Asia.
Characterization of Microplastics in Household Tap Water in Vietnam's Rural Areas: A Preliminary Study in the Red River Delta Region
Researchers conducted the first survey of microplastic contamination in household tap water in rural areas of Vietnam's Red River Delta. The study found an average of 6.8 microplastic particles per liter, mostly fragments and fibers smaller than 200 micrometers, with a polymer hazard index indicating high pollution risk levels across the sampled tap water.
A Review of Microplastics Pollution in the River Basin of Vietnam in Comparison with the World Context
This review examines microplastic pollution across Vietnam's river basins in the context of global patterns, finding significant contamination in surface water, sediments, aquatic organisms, and mangrove ecosystems — particularly in coastal urban areas — with concentrations in some urban rivers reaching 519,000 pieces/m³.
Abundances and characteristics of sedimentary microplastics in the three main Vietnamese Rivers
Researchers characterized the abundance, types, and distribution of microplastics in sediments of Vietnam's three major rivers, contextualizing findings within Vietnam's status as one of the world's top plastic waste-polluting countries with approximately 3.1 million metric tons of mismanaged plastic waste annually.
Microplastics in wastewater and sludge from centralized industrial wastewater treatment plants in Ho Chi Minh City, Vietnam
Researchers measured microplastic levels in two industrial wastewater treatment plants in Ho Chi Minh City, Vietnam, finding concentrations up to 40 particles per liter in incoming water and up to 92 particles per gram in sludge, with fibers being the most common type. Despite high removal rates, the plants still discharged 1.7 million microplastic particles per day, highlighting the limits of current treatment infrastructure.
Presence and Quantification of Microplastic in Urban Tap Water: A Pre-Screening in Brasilia, Brazil
Researchers sampled tap water from Brasilia, Brazil and detected microplastics in all samples, with fibers as the dominant type and concentrations higher than many previous studies from other cities, highlighting the need for treatment infrastructure improvements and standardized monitoring.
Microplastics in sediments from urban and suburban rivers: Influence of sediment properties
Researchers measured microplastic concentrations in sediments from 12 sites across three Vietnamese rivers in the Red River Delta during dry and rainy seasons, finding concentrations ranging from 1,600 to 94,300 items per kg dry weight. Fiber-dominated microplastic contamination was strongly influenced by sediment properties including grain size and organic carbon content.
Evaluation of microplastic removal efficiency of wastewater-treatment plants in a developing country, Vietnam
Researchers evaluated microplastic removal efficiency at four wastewater treatment plants in Vietnam, finding removal rates of 92-99% but substantial daily microplastic loads still entering receiving waters through effluent discharge.
Potential contamination of microplastic from plastic recycling enterprises in Ho Chi Minh City, Vietnam
Researchers found that plastic recycling plants in Ho Chi Minh City release significant concentrations of microplastics through their wastewater and sludge, with thousands of particles per liter in effluent, identifying recycling facilities as an underrecognized continuous source of microplastic pollution.
Preliminary results on microplastics in surface water from the downstream of the Day River
Preliminary data from the Day River in Vietnam detected microplastics at concentrations ranging from 0.06 to 5.6 items per liter in surface water, with fibers as the dominant type and higher concentrations near populated areas, establishing a baseline for further monitoring in Southeast Asian river systems.
Preliminary Investigation of Microplastic Pollution in Agricultural Soil in Dong Anh District, Hanoi City
Agricultural soil samples from five sites in suburban Hanoi, Vietnam contained 494 to 1031 microplastic particles per kilogram of dry soil, with PET as the dominant polymer (38%) and fragments as the most common shape. The study provides baseline contamination data for a rapidly urbanizing agricultural region of Southeast Asia where plastic use and waste mismanagement are both growing. Documenting microplastic levels in food-producing soils is a critical first step for assessing dietary exposure risks for local populations.
Emergence of microplastics in the aquatic ecosystem and their potential effects on health risks: The insights into Vietnam
This review examines the growing microplastic contamination in Vietnam's waterways, where concentrations in surface water vary enormously depending on location. Highly populated cities like Hanoi and Ho Chi Minh City show the highest levels, with plastics entering water through agricultural runoff, textile production, and consumer products. The contamination poses health risks to millions of people through drinking water and seafood consumption.
Characteristics of Microplastics and Their Affiliated PAHs in Surface Water in Ho Chi Minh City, Vietnam
Researchers characterized microplastics and associated polycyclic aromatic hydrocarbons (PAHs) in surface water across canals, the Saigon River, and coastal waters in Ho Chi Minh City, Vietnam, finding microplastics at all sites with the highest concentrations in urban canals and detecting co-occurring PAH contamination.
Microplastic emission characteristics of stormwater runoff in an urban area: Intra-event variability and influencing factors
Researchers found that stormwater runoff from both industrial and residential urban catchments contained substantial microplastics (54–639 particles per liter), with polypropylene and polyethylene dominating, and that microplastic concentrations peaked early in rain events following longer dry periods.
Baseline assessment of microplastic concentrations in marine and freshwater environments of a developing Southeast Asian country, Viet Nam
Researchers conducted the first baseline assessment of microplastic concentrations across marine and freshwater environments in Viet Nam, adapting sampling methods for developing-country conditions. They found microplastics present in all sampled water bodies, with concentrations comparable to those reported in more industrialized nations. The study establishes important reference data for tracking future pollution trends in Southeast Asian waterways.
Microplastics in wastewater and the role of local wastewater treatment stations in controlling microplastic pollution: a case study from Vietnam
A study in Vietnam measured microplastic concentrations across industrial, domestic, and medical wastewater, finding that industrial wastewater carried the highest loads — nearly double that of domestic sources. Local wastewater treatment stations removed a significant portion of microplastics but still discharged substantial numbers into receiving waterways. The research highlights that local-scale treatment infrastructure plays a meaningful but incomplete role in controlling microplastic pollution from diverse wastewater sources.
Developing a circular economy from plastic waste and identifying microplastics in domestic water supplies in Ho Chi Minh City and the Southeastern provinces
This study explored pathways for developing circular economy systems from plastic waste streams, including identification and quantification of microplastics at different stages of the waste cycle as a prerequisite for effective material recovery.
Microplastics and solutions to remove microplastics in wastewater from wastewater treatment plants in the Saigon–Dong Nai river basin, Vietnam
Researchers measured microplastic concentrations in inlet and outlet wastewater streams at treatment plants in the Saigon-Dong Nai river basin, Vietnam, finding inlet densities of 10.19-15.07 particles/L reduced to 0.68-2.11 particles/L after treatment, with fibers averaging 524 micrometers in length predominating across samples.
Distribution and Characteristics of Microplastics in Nhue - Day River Basin, Vietnam
Researchers investigated the distribution and characteristics of microplastics in the Nhue-Day River Basin in Vietnam, finding that microplastic abundance varies with seasonal changes and anthropogenic activities, posing threats to the ecosystem and the roughly 12 million people who depend on this river.
Assessment of Small-Scale Microplastics Abundance and Characterization in Urban River: A Case Study in Metro River, Indonesia
Researchers assessed microplastic contamination in the Metro River in Indonesia, finding that abundance and characteristics varied by land use type, with urban areas showing higher concentrations of fragments and fibers in this rapidly developing region.